FreeCAD: The return of the toroidal propeller

By adding more profiles to the blade sweps, the blade pitch can be better controlled through the span of the blade.
Because of parametric design and a spreadsheet, endless variations on the theme are possible.

[@brianprice7020]

I find spreadsheets very useful trimming my designs.

[@monolith4076]

Great job! Hope to find propeller longer for underwater aplications

[@4axisprinting]

Since it's a parametric design, it should be adaptable for underwater.

[@APBTT]

Amazing Design, is it possible to do the same work on Solidworks with the Sheets Function?